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KR930020954A - Corner pin cushion deformation correction circuit and TV receiver - Google Patents

Corner pin cushion deformation correction circuit and TV receiver Download PDF

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Publication number
KR930020954A
KR930020954A KR1019930003988A KR930003988A KR930020954A KR 930020954 A KR930020954 A KR 930020954A KR 1019930003988 A KR1019930003988 A KR 1019930003988A KR 930003988 A KR930003988 A KR 930003988A KR 930020954 A KR930020954 A KR 930020954A
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KR
South Korea
Prior art keywords
circuit
corner
signal
correction
amplitude
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KR1019930003988A
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Korean (ko)
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KR960014327B1 (en
Inventor
히로시 안도
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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Application filed by 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR930020954A publication Critical patent/KR930020954A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Amplifiers (AREA)

Abstract

본 발명은, CRT의 상부와 하부의 코너변형보정회로를 독립해서 가진 핀쿠션 보정 회로에 관한 것으로서, 보다 정확한 편향변형보정을 가능하게 하는 것을 목적으로 한 것이며, 그 구성에 있어서, 1수직기간의 주기를 가진 톱니파의 화면하부에 해당하는 부분을 빼내는 차동비교회로(2)와, 빼낸파형을 승산하는 승산회로(4)와, 보정파형의 진폭을 조정하는 진폭조정회로(6)에 의해서 화면하부의 코너변형을 보정하고, 마찬가지로 톱니파로부터 화면 상부에 해당하는 부분을 빼내는 차동비교회로(3)과, 승산회로(5)와, 진폭 조정회로(8)에 의해서 화면상부의 코너변형을 보정하는 회로를 형성하므로서, 화면상부와 하부의 코너변형을 독립적으로 제어할 수 있어, 보다 양호한 편향변형 보정이 가능하게 한 것을 특징으로 한다.The present invention relates to a pincushion correction circuit having independent upper and lower corner strain correction circuits of CRT, and aims at enabling a more accurate deflection strain correction. In this configuration, a period of one vertical period is provided. The differential comparison circuit (2), which pulls out the portion corresponding to the lower part of the screen of the sawtooth wave having the same, the multiplication circuit (4) multiplying the extracted waveform, and the amplitude adjusting circuit (6) for adjusting the amplitude of the correction waveform, A circuit for correcting corner distortion in the upper portion of the screen by a differential comparison circuit (3), a multiplication circuit (5), and an amplitude adjustment circuit (8) that corrects corner deformation and similarly extracts a portion corresponding to the upper portion of the screen from the sawtooth wave. By forming, it is possible to independently control the corner deformation of the upper and lower portions of the screen, so that a better deflection deformation correction is possible.

Description

코너핀 쿠션변형 보정회로와 텔레비젼수상기Corner pin cushion deformation correction circuit and TV receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 일실시예에 있어서의 핀쿠션 보정회로의 블록도.1 is a block diagram of a pincushion correction circuit according to an embodiment of the present invention.

제2도(a)는 본 발명의 하부코너변형보정회로도.Figure 2 (a) is a lower corner deformation correction circuit of the present invention.

제2도(b)는 본 발명의 상부코너변형보정회로도.Figure 2 (b) is an upper corner deformation correction circuit of the present invention.

제3도는 제1도의 실시예에 있어서의 상부코너와 하부코너의 독립제어의 코너변형보정 파신호형성의 개념도.3 is a conceptual diagram of corner deformation correction wave signal formation of independent control of the upper corner and the lower corner in the embodiment of FIG.

Claims (2)

영상신호의 1수직기간의 주기를 가진 톱니파전압신호를 입력으로서 CRT의 하부 코너에 해당하는 부분을 인출하는 차동비교회로a와, 상기 CRT의 상부코너에 해당하는 부분을 인출하는 차동비교회로 b와, 상기 차동비교회로(a)로 부터의 출력신호를 승산하는 승산회로 a와, 상기 차동 비교회로 b로부터의 출력신호를 승산하는 승산회로 b와, 상기 승산회로 a로부터의 출력신호의 진폭을 조정하는 진폭조정회로 a와 상기 승산회로 b로부터의 출력신호의 진폭을 조정하는 진폭조정회로 b와, 상기 진폭조정회로 a와 진폭조정회로 b로부터의 출력을 입력으로서 가산하는 가산회로와, 상기 영상신호의 1수직기간의 주기를 가진 톱니파전압신호를 입력으로 하여 전류변환하는 전압/전류변환기와, 상기 전압/전류변환기의 출력신호를 입력신호로하여 CRT의 좌우실패형 변형보정 2차곡선파신호를 형성하는 승상회로 C와, 상기 승산회로 C로부터 출력되는 좌우실패형 변형보정 2차곡선파신호와 상기 가산회로로부터 출력되는 코너변형보정파신호를 입력으로하는 증폭회로를 구비하고, 상기 CRT의 상부코너와 하부코너의 변형을 독립적으로 제어하는 것을 목적으로한 것을 특징으로 하는 핀쿠션보정회로.A differential comparator a which draws out the part corresponding to the lower corner of the CRT as a input of a sawtooth voltage signal having a period of one vertical period of the video signal, and a differential comparator b which draws out the part corresponding to the upper corner of the CRT. A multiplication circuit a for multiplying the output signal from the differential comparison circuit a, a multiplication circuit b for multiplying the output signal from the differential comparison circuit b, and an amplitude of the output signal from the multiplication circuit a. An amplitude adjustment circuit b for adjusting the amplitude of the output signal from the amplitude adjustment circuit a and the multiplication circuit b, an addition circuit for adding outputs from the amplitude adjustment circuit a and the amplitude adjustment circuit b as inputs, and the video signal. Left / right failure of CRT by inputting a voltage / current converter for inputting a sawtooth voltage signal having a period of 1 vertical period as a current and an output signal of the voltage / current converter as an input signal. A boost circuit C for forming a strain correction quadratic wave signal, and an amplifying circuit for inputting a left and right failure strain correction quadratic wave signal output from the multiplication circuit C and a corner strain wave signal output from the addition circuit; The pincushion correction circuit for the purpose of independently controlling the deformation of the upper corner and the lower corner of the CRT. 상기 특허청구범위 제1항 기재의 핀쿠션 보정회로를 내장한 것을 특징으로 하는 텔레비젼수상기.A television receiver comprising a pincushion correction circuit as set forth in claim 1. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930003988A 1992-03-17 1993-03-16 Corner pin cushion correction circuit and television KR960014327B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP05994692A JP3284575B2 (en) 1992-03-17 1992-03-17 Corner pincushion distortion correction circuit and television receiver.
JP92-59946 1992-03-17

Publications (2)

Publication Number Publication Date
KR930020954A true KR930020954A (en) 1993-10-20
KR960014327B1 KR960014327B1 (en) 1996-10-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930003988A KR960014327B1 (en) 1992-03-17 1993-03-16 Corner pin cushion correction circuit and television

Country Status (7)

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US (1) US5449982A (en)
EP (1) EP0561043B1 (en)
JP (1) JP3284575B2 (en)
KR (1) KR960014327B1 (en)
CN (1) CN1026281C (en)
CA (1) CA2081947C (en)
DE (1) DE69212799T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100337695B1 (en) * 1993-09-03 2002-10-31 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 Vertical deflector in vertical shrink mode

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153146A (en) * 1987-12-11 1989-06-15 Yokogawa Medical Syst Ltd Ultrasonic diagnostic apparatus
CN1067198C (en) * 1996-11-07 2001-06-13 神达电脑股份有限公司 Compensation device and method for north-south trapezoidal distortion
US6011364A (en) * 1996-12-04 2000-01-04 Samsung Electronics Co., Ltd. Upper and lower distortion correcting circuit by modes
FR2760305B1 (en) * 1997-02-28 1999-05-14 Sgs Thomson Microelectronics HORIZONTAL DEFLECTION CORRECTION CIRCUIT FOR TELEVISION
KR100588106B1 (en) * 1998-08-14 2006-06-08 소니 가부시끼 가이샤 Scanning Speed Modulation Circuit of Image Display Device
JP3636652B2 (en) * 2000-11-10 2005-04-06 Ｎｅｃマイクロシステム株式会社 Distortion correction circuit and display device
US6717377B1 (en) * 2001-10-31 2004-04-06 Zilog, Inc. Circuit and method for reducing east-west geometry mismatch between the top and bottom of a raster display
US7170239B2 (en) * 2001-10-31 2007-01-30 Zilog, Inc. Circuit and method for reducing east-west geometry mismatch between the top and bottom of a raster display
US8464551B2 (en) * 2008-11-18 2013-06-18 Air Products And Chemicals, Inc. Liquefaction method and system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395662A (en) * 1981-05-27 1983-07-26 General Electric Company Correction circuits for projection television
JPS58170281A (en) * 1982-03-19 1983-10-06 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Deflecting distortion correcting circuit
US4518898A (en) * 1983-02-22 1985-05-21 Image Graphics, Incorporated Method and apparatus for correcting image distortions
GB2160080B (en) * 1984-06-05 1988-01-20 Motorola Inc Timebase circuit
JPH0793692B2 (en) * 1985-02-22 1995-10-09 日立電子株式会社 Image distortion correction device
US4795946A (en) * 1988-01-11 1989-01-03 Fuji Photo Film Co., Ltd. Method of and circuit for correcting linearity of horizontal deflection system
JPH02119030A (en) * 1988-10-27 1990-05-07 Metsuku:Kk Cathode-ray tube and deflection yoke testing device
US4927219A (en) * 1989-06-26 1990-05-22 North American Philips Corporation Corner raster distortion correction circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100337695B1 (en) * 1993-09-03 2002-10-31 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 Vertical deflector in vertical shrink mode

Also Published As

Publication number Publication date
EP0561043A1 (en) 1993-09-22
DE69212799D1 (en) 1996-09-19
JPH05268492A (en) 1993-10-15
JP3284575B2 (en) 2002-05-20
DE69212799T2 (en) 1996-12-19
CA2081947A1 (en) 1993-09-18
US5449982A (en) 1995-09-12
CA2081947C (en) 1996-05-07
KR960014327B1 (en) 1996-10-15
CN1026281C (en) 1994-10-19
CN1076575A (en) 1993-09-22
EP0561043B1 (en) 1996-08-14

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